> Portal Navigation:
> 
> - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version.
> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
> - Top-level index of all portals: https://dev.wix.com/docs/llms.txt
> - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt

## Resource: Extend eCommerce Site Pages

## Article: Extend eCommerce Site Pages

## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/guides/extend-e-commerce-site-pages.md

## Article Content:

# Extend eCommerce Site Pages

Wix eCommerce adds [pages](https://dev.wix.com/docs/build-apps/develop-your-app/extensions/site-extensions/site-pages/about-site-page-extensions.md) to the user's site. The functionality of these pages can be extended by [adding plugins](https://dev.wix.com/docs/build-apps/develop-your-app/extensions/site-extensions/site-plugins/about-site-plugin-extensions.md) to predefined slots. For example, you can extend the functionality of the [Checkout Page](https://dev.wix.com/docs/build-apps/develop-your-app/extensions/site-extensions/site-plugins/supported-wix-app-pages/wix-e-commerce/wix-e-commerce-checkout-page.md) by adding plugins that apply custom logic to various stages in the checkout process.

Learn how to extend the following eCommerce site pages:


| Site Page | Description |
|-----|----|
| **Checkout Page** | Add plugins to extend functionality on the page where site visitors finalize their transaction. [Learn how to extend the Checkout Page](https://dev.wix.com/docs/build-apps/develop-your-app/extensions/site-extensions/site-plugins/supported-wix-app-pages/wix-e-commerce/wix-e-commerce-checkout-page.md). |
| **Side Cart** | Add plugins to extend functionality in the side cart where visitors can view the items in their cart and continue to checkout. [Learn how to extend the Side Cart](https://dev.wix.com/docs/build-apps/develop-your-app/extensions/site-extensions/site-plugins/supported-wix-app-pages/wix-e-commerce/wix-e-commerce-side-cart.md). |